As an attendee, you have the ability to provide feedback to the host during a session. This works the same on a Tablet as on a computer.
1. Open the feedback menu by clicking on the smiley face at the bottom of the session
2. From this menu you can raise your hand or send any one of a number of feedback icons. These are sent to the Host, Co-Host, and Co-Presenter, who will get an audible notification while an Icon will pop up next to your name.